CN218435460U - Integrated treatment equipment for zinc-nickel alloy wastewater pretreatment - Google Patents
Integrated treatment equipment for zinc-nickel alloy wastewater pretreatment Download PDFInfo
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- CN218435460U CN218435460U CN202222993216.5U CN202222993216U CN218435460U CN 218435460 U CN218435460 U CN 218435460U CN 202222993216 U CN202222993216 U CN 202222993216U CN 218435460 U CN218435460 U CN 218435460U
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Abstract
An integrated treatment device for zinc-nickel alloy wastewater pretreatment, which comprises a device room shell, a primary treatment mechanism and a secondary treatment mechanism; the primary treatment mechanism comprises a first pH adjusting tank, a first reaction tank, a first mixing tank, a first flocculation tank and a first sedimentation tank which are connected in sequence, wherein a water inlet for feeding zinc-nickel wastewater is formed in the first pH adjusting tank; the secondary treatment mechanism comprises a second pH adjusting tank, a second reaction tank, a third pH adjusting tank, a second mixing tank, a second flocculation tank and a second sedimentation tank which are sequentially connected, a liquid inlet of the second pH adjusting tank is connected with a liquid outlet of the first sedimentation tank, and a water outlet after zinc-nickel wastewater pretreatment is arranged on the upper portion of the second sedimentation tank. The utility model discloses can high-efficiently remove the pollutant in zinc-nickel alloy electroplating wastewater, have that the medicament adds the volume and is few, the mud production volume is few, characteristics such as the energy consumption is low, preliminary treatment integration equipment simple manufacture, area is little, has better market perspective.
Description
Technical Field
The utility model relates to a zinc-nickel alloy waste water treatment technical field, concretely relates to zinc-nickel alloy waste water preliminary treatment integration treatment facility.
Background
Alloy plating is a surface treatment technology emerging in recent years, an alloy plating layer generally contains two or more than two metal plating layers, and compared with a traditional single metal plating layer, the alloy plating layer has the characteristics of wear resistance, corrosion resistance, high temperature resistance, high hardness, high density, strong weldability, convenience in machining, attractive appearance and the like. Among them, zinc-nickel alloy is a new protective alloy coating which develops rapidly and has been widely used in the fields of light industry and household appliances, automobiles, aerospace and the like. However, for the zinc-nickel alloy electroplating, in order to ensure the codeposition and stability of the two metals with larger potential difference in the plating layer, a specific complexing agent is generally required to be added in the electroplating process. Commonly used complexing agents include mainly aminocarboxylic acids, hydroxycarboxylic acids, aliphatic amines, alcamines, polyamines, polyol compounds, and the like. Because the added zinc ions and nickel ions of the complexing agents are in a complexing state, the treatment difficulty of the zinc-nickel alloy electroplating wastewater is greatly increased, and the zinc-nickel alloy electroplating wastewater treated by the conventional method cannot reach the standard and is usually discharged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a zinc-nickel alloy waste water preliminary treatment integration treatment facility to above-mentioned defect.
An integrated zinc-nickel alloy wastewater pretreatment treatment device comprises a device room shell, a primary treatment mechanism and a secondary treatment mechanism, wherein the primary treatment mechanism and the secondary treatment mechanism are arranged in the device room shell;
the primary treatment mechanism comprises a first pH adjusting tank, a first reaction tank, a first mixing tank, a first flocculation tank and a first sedimentation tank which are connected in sequence, wherein a water inlet for feeding the zinc-nickel wastewater is formed in the first pH adjusting tank;
the secondary treatment mechanism is including the second pH equalizing basin, second reaction tank, third pH equalizing basin, the mixed pond of second, second flocculation basin and the second sedimentation tank that connect gradually, the inlet of second pH equalizing basin is connected with the liquid outlet of first sedimentation tank, the upper portion of second sedimentation tank is equipped with the delivery port that is used for after the zinc-nickel wastewater preliminary treatment.
Preferably, the device also comprises an aeration fan arranged in the casing of the device room, and the aeration fan is respectively connected with the first pH adjusting tank, the first reaction tank, the first mixing tank, the first flocculation tank, the second pH adjusting tank, the second reaction tank, the third pH adjusting tank, the second mixing tank and the second flocculation tank through aeration pipelines.
Preferably, the acid liquor dosing device is arranged in the housing of the equipment room, and a first acid liquor dosing pipe connected to the first pH adjusting tank and a second acid liquor dosing pipe connected to the second pH adjusting tank are respectively arranged on the acid liquor dosing device.
Preferably, the device also comprises an alkali liquor dosing device arranged in the casing of the equipment room, and an alkali liquor dosing pipe connected to the third pH adjusting tank is arranged on the alkali liquor dosing device.
Preferably, the device also comprises a sodium sulfide dosing device arranged in the casing of the equipment room, and the sodium sulfide dosing device is provided with a sodium sulfide dosing pipe connected to the first reaction tank.
Preferably, it is still including setting up the PAM charge device in the equipment room casing, be equipped with on the PAM charge device and be connected to the first PAM charge pipe in first flocculation basin and be connected to the second PAM charge pipe in second flocculation basin.
Preferably, the equipment room further comprises a PAC dosing device arranged in the equipment room shell, and a first PAC dosing pipe connected to the first mixing pool and a second PAC dosing pipe connected to the second mixing pool are arranged on the PAC dosing device.
Preferably, the device also comprises a chelating agent dosing device arranged in the shell of the equipment room, and a chelating agent dosing pipe connected to the second reaction tank is arranged on the chelating agent dosing device.
Preferably, the first sedimentation tank and the second sedimentation tank are respectively provided with a first sludge discharge port and a second sludge discharge port.
Preferably, the first pH adjusting tank, the second pH adjusting tank and the third pH adjusting tank are respectively provided with a first online pH meter, a second online pH meter and a third online pH meter.
The utility model has the advantages that: the method can efficiently remove pollutants in the zinc-nickel alloy electroplating wastewater, has the characteristics of less reagent dosage, less sludge generation, low energy consumption and the like, and has the advantages of simple manufacture of pretreatment integrated equipment, small occupied area and better market application prospect.
Description of the figures
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction is not understood as the limitation of the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
As shown in the attached drawings, the utility model comprises an equipment room shell 1, a primary treatment mechanism and a secondary treatment mechanism which are arranged in the equipment room shell 1;
the primary treatment mechanism comprises a first pH adjusting tank 2, a first reaction tank 3, a first mixing tank 4, a first flocculation tank 5 and a first sedimentation tank 6 which are connected in sequence, wherein a water inlet 13 for feeding the zinc-nickel wastewater is formed in the first pH adjusting tank 2;
the secondary treatment mechanism includes second pH equalizing basin 7, second reaction tank 8, third pH equalizing basin 9, the mixed pond of second 10, second flocculation basin 11 and second sedimentation tank 12 that connect gradually, the inlet of second pH equalizing basin 7 is connected with the liquid outlet of first sedimentation tank 6, the upper portion of second sedimentation tank 12 is equipped with the delivery port 14 that is used for behind the zinc-nickel waste water preliminary treatment.
Furthermore, the device also comprises an aeration fan 17 arranged in the device room shell 1, wherein the aeration fan 17 is respectively connected with the first pH adjusting tank 2, the first reaction tank 3, the first mixing tank 4, the first flocculation tank 5, the second pH adjusting tank 7, the second reaction tank 8, the third pH adjusting tank 9, the second mixing tank 10 and the second flocculation tank 11 through aeration pipelines.
Furthermore, the acid liquor feeding device 18 is arranged in the equipment room shell 1, and a first acid liquor feeding pipe 24 connected to the first pH adjusting tank 2 and a second acid liquor feeding pipe 25 connected to the second pH adjusting tank 7 are respectively arranged on the acid liquor feeding device 18.
Furthermore, the device also comprises an alkali liquor dosing device 21 arranged in the equipment room shell 1, and an alkali liquor dosing pipe 29 connected to the third pH adjusting tank 9 is arranged on the alkali liquor dosing device 21.
Furthermore, the device also comprises a sodium sulfide dosing device 23 arranged in the equipment room shell 1, and a sodium sulfide dosing pipe 32 connected to the first reaction tank 3 is arranged on the sodium sulfide dosing device 23.
Furthermore, the device also comprises a PAM dosing device 20 arranged in the equipment room shell 1, wherein a first PAM dosing pipe 27 connected to the first flocculation tank 5 and a second PAM dosing pipe 28 connected to the second flocculation tank 11 are arranged on the PAM dosing device 20.
Further, it comprises a PAC dosing device 22 disposed in the equipment room housing 1, wherein the PAC dosing device 22 is provided with a first PAC dosing pipe 30 connected to the first mixing tank 4 and a second PAC dosing pipe 31 connected to the second mixing tank 10.
Furthermore, the device also comprises a chelating agent dosing device 19 arranged in the equipment room shell 1, and a chelating agent dosing pipe 26 connected to the second reaction tank 8 is arranged on the chelating agent dosing device 19.
Further, the first settling tank 6 and the second settling tank 12 are respectively provided with a first sludge discharge port 15 and a second sludge discharge port 16.
Further, a first online pH meter 46, a second online pH meter 47 and a third online pH meter 48 are respectively disposed in the first pH adjusting tank 2, the second pH adjusting tank 7 and the third pH adjusting tank 9.
The process flow comprises the following steps: zinc-nickel alloy wastewater → pH regulation (about 7) → sodium sulfide (removing zinc and nickel) → coagulation → flocculation → precipitation → supernatant → pH regulation (about 3) → removing residual complex zinc and nickel (chelating agent) → pH regulation (flake caustic soda 10.5-11.5) → coagulation → flocculation → precipitation → primary nickel discharge opening, and heavy metals zinc and nickel in effluent can reach the 3 rd standard in the discharge standard of electroplating pollutants (GB 21900-2008).
The above embodiments are only for illustrating the technical solutions and features of the present invention, and the purpose of the embodiments is to better enable those familiar with the art to practice the present invention, which cannot limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention are within the protection scope of the present invention, wherein the prior art is not described in detail.
Claims (10)
1. An integrated zinc-nickel alloy wastewater pretreatment treatment device is characterized by comprising a device room shell (1), a primary treatment mechanism and a secondary treatment mechanism, wherein the primary treatment mechanism and the secondary treatment mechanism are arranged in the device room shell (1);
the primary treatment mechanism comprises a first pH adjusting tank (2), a first reaction tank (3), a first mixing tank (4), a first flocculation tank (5) and a first sedimentation tank (6) which are connected in sequence, wherein a water inlet (13) for feeding the zinc-nickel wastewater is formed in the first pH adjusting tank (2);
the secondary treatment mechanism comprises a second pH adjusting tank (7), a second reaction tank (8), a third pH adjusting tank (9), a second mixing tank (10), a second flocculation tank (11) and a second sedimentation tank (12) which are sequentially connected, wherein a liquid inlet of the second pH adjusting tank (7) is connected with a liquid outlet of the first sedimentation tank (6), and a water outlet (14) used for zinc-nickel wastewater pretreatment is arranged on the upper portion of the second sedimentation tank (12).
2. The zinc-nickel alloy wastewater pretreatment integrated treatment equipment according to claim 1, characterized by further comprising an aeration fan (17) arranged in the equipment room casing (1), wherein the aeration fan (17) is respectively connected with the first pH adjusting tank (2), the first reaction tank (3), the first mixing tank (4), the first flocculation tank (5), the second pH adjusting tank (7), the second reaction tank (8), the third pH adjusting tank (9), the second mixing tank (10) and the second flocculation tank (11) through aeration pipelines.
3. The integrated zinc-nickel alloy wastewater pretreatment treatment equipment according to claim 1, characterized in that the equipment further comprises an acid solution adding device (18) arranged in the equipment room shell (1), and a first acid solution adding pipe (24) connected to the first pH adjusting tank (2) and a second acid solution adding pipe (25) connected to the second pH adjusting tank (7) are respectively arranged on the acid solution adding device (18).
4. The zinc-nickel alloy wastewater pretreatment integrated treatment equipment according to claim 1, characterized by further comprising an alkali liquor dosing device (21) arranged in the equipment room casing (1), wherein an alkali liquor dosing pipe (29) connected to the third pH adjusting tank (9) is arranged on the alkali liquor dosing device (21).
5. The zinc-nickel alloy wastewater pretreatment integrated treatment equipment according to claim 1, characterized by further comprising a sodium sulfide dosing device (23) arranged in the equipment room casing (1), wherein a sodium sulfide dosing pipe (32) connected to the first reaction tank (3) is arranged on the sodium sulfide dosing device (23).
6. The zinc-nickel alloy wastewater pretreatment integrated treatment equipment according to claim 1, characterized in that it further comprises a PAM dosing device (20) disposed in the equipment room housing (1), and the PAM dosing device (20) is provided with a first PAM dosing pipe (27) connected to the first flocculation tank (5) and a second PAM dosing pipe (28) connected to the second flocculation tank (11).
7. The integrated zinc-nickel alloy wastewater pretreatment treatment equipment according to claim 1, characterized in that the equipment further comprises a PAC dosing device (22) arranged in the equipment room shell (1), and a first PAC dosing pipe (30) connected to the first mixing tank (4) and a second PAC dosing pipe (31) connected to the second mixing tank (10) are arranged on the PAC dosing device (22).
8. The zinc-nickel alloy wastewater pretreatment integrated treatment equipment according to claim 1, characterized by further comprising a chelating agent dosing device (19) arranged in the equipment room casing (1), wherein the chelating agent dosing device (19) is provided with a chelating agent dosing pipe (26) connected to the second reaction tank (8).
9. The integrated zinc-nickel alloy wastewater pretreatment treatment equipment according to claim 1, wherein the first sedimentation tank (6) and the second sedimentation tank (12) are respectively provided with a first sludge discharge port (15) and a second sludge discharge port (16).
10. The zinc-nickel alloy wastewater pretreatment integrated treatment equipment according to claim 1, characterized in that a first online pH meter (46), a second online pH meter (47) and a third online pH meter (48) are respectively arranged in the first pH adjusting tank (2), the second pH adjusting tank (7) and the third pH adjusting tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222993216.5U CN218435460U (en) | 2022-11-10 | 2022-11-10 | Integrated treatment equipment for zinc-nickel alloy wastewater pretreatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222993216.5U CN218435460U (en) | 2022-11-10 | 2022-11-10 | Integrated treatment equipment for zinc-nickel alloy wastewater pretreatment |
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| Publication Number | Publication Date |
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| CN218435460U true CN218435460U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222993216.5U Active CN218435460U (en) | 2022-11-10 | 2022-11-10 | Integrated treatment equipment for zinc-nickel alloy wastewater pretreatment |
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| CN (1) | CN218435460U (en) |
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2022
- 2022-11-10 CN CN202222993216.5U patent/CN218435460U/en active Active
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